{
  "manageEntity": {
    "action": "Save",
    "entityId": "226522",
    "entityType": "Track",
    "nonce": "0x2c0f332bca70029b9550ceb8b11fe8c662b7859b3d68250f12df857d70cbfee9",
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    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
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}